Patents by Inventor Fedor M. Mitschke

Fedor M. Mitschke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for the stabilization of the output intensity of a laser using a Fabry-Perot cavity
    Patent number: 4730105
    Abstract: An external mirror is positioned relative to the output mirror of a laser to form a Fabry-Perot cavity. The light transmitted by this Fabry-Perot cavity is compared to a reference value in order to develop an error signal which in turn is used to adjust the transmission characteristics of the Fabry-Perot cavity. In the embodiment constructed a beam splitter is positioned to deflect light coupled out of the Fabry-Perot cavity to an optical detector. The output of this detector is compared to a reference voltage in a difference amplifier which generates an electrical error signal. The electrical error signal is coupled to a piezoelectric translator which is attached to the external mirror and is capable of moving that mirror in a way so as to change the transmission characteristics of the Fabry-Perot cavity. Specific embodiments using a dye laser and a soliton laser are also disclosed.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: March 8, 1988
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Fedor M. Mitschke, Linn F. Mollenauer